Data through close

RUT max pain, gamma exposure (GEX) & options open interest

As of close · rank #140 by open interest · 1,399 sessions of history since Dec 1, 2020

RUT's nearest-expiration max pain is 2,805.00 for 2026-10-19, its GEX flip is 2,871.13, net GEX is -108,224,170, its put/call open-interest ratio is 1.73. These are whole-chain derived aggregates as of Oct 16, 2026 close.

RUT max pain and GEX snapshot

End-of-day snapshot for . Nearest-expiration max pain uses the expiry shown on its card; GEX uses the whole chain. Missing values are unavailable, not zero.

Nearest-expiration max pain
2,805.00
+3.1% from close
Expiry: 2026-10-19
GEX flip
2,871.13
+5.5% from close
Net GEX
-108,224,170
-15,302,910 per 100k OI
Call wall
2,900.00
+6.6% from close
Put wall
2,700.00
-0.8% from close
Put/call OI
1.73
448,542 puts / 258,671 calls

Prices are in US dollars per share. Net GEX is modeled dollar-delta change per $1 underlying move. Max pain minimizes aggregate intrinsic payout for that expiration; it is not a closing-price forecast. Signed GEX uses calls positive and puts negative, a model convention rather than observed dealer inventory. The flip is a confirmed zero crossing; walls locate side-specific concentrations, not guaranteed support or resistance.

Learn how to read the max pain payout example, GEX chart, gamma flip and walls, and open interest versus trading volume.

Close
2,721.37
prev 2,767.28
Gamma max
3,036.41
+11.6% from close
Delta neutral
2,860.81
+5.1% from close
Gamma neutral
2,871.13
+5.5% from close
Open interest
707,213
-17.8% vs prev
Contracts listed
4,570
2,070 calls · 2,640 puts

Advanced options analysis

Public aggregate analysis from the dated chain, normalized where possible for comparison across tickers. Catalyst intensity measures unusual pricing and activity; it does not identify an event, predict direction, or establish that an investment is attractive.

Catalyst intensity
62.0
cross-sectional score / 100
Directional score
-25.2
relatively bearish positioning
IV rank
100.0
within trailing 52-week range
Front IV premium
4.0 pp
front minus back volatility difference
25Δ risk reversal
3.7 pp
put IV minus call IV
IV butterfly
5.7 pp
front-window smile convexity
Volume / open interest
0.14
127,761 contracts traded
Normalized net delta
-0.162
option-holder convention
Modeled dealer delta
0.161
opposite-side scenario
Vanna / 100k OI
2,336
volatility-sensitive delta
Charm / 100k OI
24,184,729
time-decay-sensitive delta
IV surface range
57.7 pp
aggregate volatility dispersion

Strongest relative signals: volume/OI 0.14 · IV rank 100

Download the dated aggregate analysis JSON .

RUT closed 11.6% below its gamma max of 3,036.41. It is 5.1% below the delta neutral price of 2,860.81. Total open interest is 707,213, -17.8% versus the previous session. Its options catalyst-intensity score is 62.0 out of 100, led by volume/OI 0.14, IV rank 100. What gamma max means · What delta neutral means

Call versus put open interest changes

Growth compares outstanding contracts on each side. A positive growth gap favors calls; a negative gap favors puts. Standardized surprises compare each measure with its own prior history. These describe the OI balance, not IV skew or buying direction.

RUT call and put open interest changes
Measure Value
Call OI change, 1 session -75,231 contracts · -22.5%
Put OI change, 1 session -77,857 contracts · -14.8%
Call minus put OI growth, 1 session -7.7 pp
Call OI change, 5 sessions -32,279 contracts · -11.1%
Put OI change, 5 sessions -30,994 contracts · -6.5%
Call minus put OI growth, 5 sessions -4.6 pp
Daily call OI change surprise -4.60σ (252 prior changes)
Daily put OI change surprise -2.70σ (252 prior changes)
Daily call-minus-put growth surprise -3.45σ (252 prior changes)

History

2025-10 2026-10
close delta neutral gamma max
Full history since 2020: drag to pan, scroll to zoom, hover for values. Open full-screen chart

Analysis visualizations

Daily ticker aggregates through 2026-10-16. The max pain curve pools all listed expirations; individual contracts are outside the public dataset.

Aggregate IV history

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Swipe chart sideways to see the full range.

What followed prior gamma-max crosses?

Each historical path starts at 0% on the cross date and follows the close for ten subsequent trading sessions. Cohorts use the same direction as labelled and require gamma max to be within 10% of the close on both crossing sessions.

Crosses below gamma max 3 completed Day +10 paths · latest Dec 15, 2023
RUT returns after crossing below gamma max Historical close-to-close return paths from Day 0 through Day 10, with the median, middle fifty percent, and a nominal confidence interval for the median. -4.0% -2.0% 0% +2.0% +4.0% Cross on Jan 15, 2021 Cross on Feb 3, 2023 Cross on Dec 15, 2023 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
RUT historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 3 -0.1% -0.8% to +0.6% 33% – –
Day +2 3 +1.8% +0.5% to +1.9% 67% – –
Day +3 3 -0.1% -1.2% to +0.5% 33% – –
Day +4 3 +1.6% -1.0% to +1.9% 67% – –
Day +5 3 +1.9% -0.7% to +2.2% 67% – –
Day +6 3 +1.3% -0.5% to +2.6% 67% – –
Day +7 3 -0.6% -1.5% to +1.7% 33% – –
Day +8 3 -0.7% -1.0% to +1.5% 33% – –
Day +9 3 -1.9% -2.1% to +0.1% 33% – –
Day +10 3 +0.3% -0.9% to +0.9% 67% – –
Crosses above gamma max 3 completed Day +10 paths · latest Dec 13, 2023
RUT returns after crossing above gamma max Historical close-to-close return paths from Day 0 through Day 10, with the median, middle fifty percent, and a nominal confidence interval for the median. -6.0% -3.0% 0% +3.0% +6.0% Cross on Jan 14, 2021 Cross on Feb 2, 2023 Cross on Dec 13, 2023 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
RUT historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 3 -0.6% -1.1% to +1.0% 33% – –
Day +2 3 -0.3% -1.2% to +0.8% 33% – –
Day +3 3 +0.3% -0.5% to +1.1% 67% – –
Day +4 3 -0.5% -1.6% to +1.7% 33% – –
Day +5 3 +0.6% -1.8% to +1.2% 67% – –
Day +6 3 +0.4% -1.8% to +2.0% 67% – –
Day +7 3 -0.3% -1.6% to +2.1% 33% – –
Day +8 3 -2.2% -2.5% to +1.9% 33% – –
Day +9 3 -1.8% -2.0% to +2.2% 33% – –
Day +10 3 -2.8% -3.1% to +1.5% 33% – –

Returns are close-to-close after the labelled number of subsequent trading sessions. The confidence floor is the closest-to-zero bound of the order-statistic median interval; it is zero when that interval spans zero. Its coverage is nominally at least 90% under independent observations. Historical paths can overlap, so the interval and floor are descriptive uncertainty guides rather than formal coverage guarantees. Historical, not a forecast.

Last 252 sessions

RUT trailing historical statistics
Sessions closed above gamma max 0%
Gamma max crosses 0
Delta neutral crosses 39
Prior-year sessions closer to gamma max 98.8% of 252
Prior-year sessions closer to delta neutral 98.0% of 252
Open interest percentile (1y) 67th
Daily open interest change versus prior year -3.44σ (-153,088 contracts; 252 prior changes)
Open interest change, 5 sessions -8.2%
Open interest change, 21 sessions -20.3%
History available Dec 1, 2020 → Oct 16, 2026

Recent crosses

  1. closed below delta neutral at 2,972.65 vs 3,000.30 (-0.9%)
  2. closed above delta neutral at 3,014.36 vs 3,008.10 (+0.2%)
  3. closed below delta neutral at 3,005.90 vs 3,005.92 (-0.0%)
  4. closed above delta neutral at 3,010.00 vs 3,005.49 (+0.1%)
  5. closed below delta neutral at 2,995.08 vs 2,999.64 (-0.2%)
  6. closed above delta neutral at 3,017.87 vs 3,004.80 (+0.4%)
  7. closed below delta neutral at 2,992.44 vs 2,998.57 (-0.2%)
  8. closed above delta neutral at 2,981.93 vs 2,957.64 (+0.8%)
  9. closed below delta neutral at 2,959.93 vs 2,973.06 (-0.4%)
  10. closed above delta neutral at 2,987.40 vs 2,977.97 (+0.3%)

In today's screens

Neighbours by open interest

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Canonical source: https://halfonadouble.com/stock/RUT

Questions people ask about RUT

What is RUT's max pain for the nearest expiration?

As of Oct 16, 2026 close, nearest-expiration max pain is 2,805.00 for the 2026-10-19 expiration. It is a payout-minimizing strike for one expiration. An all-expiration pooled value is a different comparison, and neither establishes where the underlying will close. Max pain definition and worked payout example.

Our 2025 max-pain study compares historical Thursday levels with Friday underlying closes and an unchanged-price baseline. Its scope and results are separate from this current ticker snapshot.

What do RUT's gamma exposure and gamma flip show?

Signed net GEX is -108,224,170 as of Oct 16, 2026 close. The confirmed GEX flip is 2,871.13. These aggregate model outputs use calls positive and puts negative. Their sign does not identify dealers' actual positions or predict the next move. How to interpret GEX, gamma flip and walls.

Where is RUT's gamma max today?

As of Oct 16, 2026, the gamma max for RUT is 3,036.41, +11.6% from the 2,721.37 close. Gamma max is the underlying price at which the summed gamma of every open contract is largest; how it is computed and why it matters.

Is RUT above or below its delta neutral price?

RUT closed below delta neutral: 2,721.37 against a delta neutral price of 2,860.81. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does RUT have?

707,213 contracts of open interest across 4,570 listed contracts on Oct 16, 2026, -17.8% versus the previous session. What open interest measures.

Levels are recomputed after every trading day from licensed end-of-day options data; only derived aggregates are published. Methodology · Data and licence · Not investment advice.